#!/bin/bash
#Program: 
#       Use loop to try find your input.
#History:
#2010/06/06     xuzhi       First release
PATH=/bin:/sbin/:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
export PATH

until [ "$yn" == "yes" ] || [ "$yn" == "YES" ]
do
    read -p "Please input yes/YES to stop this program: " yn
done
